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54 lines
2.9 KiB
Diff
54 lines
2.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Samsuik <40902469+Samsuik@users.noreply.github.com>
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Date: Thu, 30 Nov 2023 15:54:49 +0000
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Subject: [PATCH] Reduce entity tracker player updates
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index c3b3e984f8a19252b6feabb9ba1f7169dcec2fa2..5e326f26b5166b7ce79bad5724ae63392d53fa45 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -1254,6 +1254,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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try {
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for (TrackedEntity tracker : this.entityMap.values()) {
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// update tracker entry
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+ if (!tracker.shouldLookForPlayers()) continue; // Sakura - delay entities looking for nearby players
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tracker.updatePlayers(tracker.entity.getPlayersInTrackRange());
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}
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} finally {
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@@ -1501,14 +1502,34 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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private final int range;
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SectionPos lastSectionPos;
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public final Set<ServerPlayerConnection> seenBy = new ReferenceOpenHashSet<>(); // Paper - optimise map impl
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+ private final int playerSearchInterval; // Sakura - reduce entity tracker player updates
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+ private Vec3 entityPosition; // Sakura - reduce entity tracker player updates
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public TrackedEntity(Entity entity, int i, int j, boolean flag) {
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this.serverEntity = new ServerEntity(ChunkMap.this.level, entity, j, flag, this::broadcast, this.seenBy); // CraftBukkit
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this.entity = entity;
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this.range = i;
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this.lastSectionPos = SectionPos.of((EntityAccess) entity);
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+ // Sakura start - reduce entities looking for nearby players
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+ // Use a maximum of 20 ticks because stationary entities use Integer.MAX_VALUE
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+ // which causes them to turn invisible after untracking.
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+ this.playerSearchInterval = Math.min(j, 20);
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+ this.entityPosition = entity.position();
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}
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+ final boolean shouldLookForPlayers() {
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+ // We have to always update players otherwise they can turn invisible on teleports (why?)
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+ if (entity instanceof net.minecraft.world.entity.player.Player || entity.tickCount % playerSearchInterval == 0) {
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+ return true;
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+ }
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+
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+ Vec3 lastPosition = entityPosition;
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+ entityPosition = entity.position();
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+
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+ return entity.position().distanceToSqr(lastPosition) >= (double) range / 2.0;
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+ }
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+ // Sakura end - reduce entities looking for nearby players
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+
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// Paper start - use distance map to optimise tracker
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com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> lastTrackerCandidates;
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